CZECH-UV光固化在压敏胶和不干胶中的应用课件

InstitiuteofOrganicChemicalTechnologyInternationalLaboratoryofAdhesivesandSelf-adhesiveMaterialsWestPomeranianUniversityofTechnology,Szczecin,Poland2019,WuxiHITLimitedCorporation&ResearchInstituteofNewMaterialsHarbinInstituteofTechnologyInstitiuteofOrganicChemical1ApplicationofUV-radiationintechnologyofPSAandself-adhesivematerialsZbigniewCzech,KarolinaMozelewskaInstitiuteofOrganicChemicalTechnologyInternationalLaboratoryofAdhesivesandSelf-adhesiveMaterialsWestPomeranianUniversityofTechnology,Szczecin,PolandApplicationofUV-radiationin2WhyPSAbasedonacrylics?Themostimportantrequirementsforapressure-sensitiveadhesive,suchashightackiness(adhesionbythetouch),highcohesion(innerstability),highstickiness(adhesion),UV,solventandtemperaturestabilityarefulfilledbyacrylicsinanoutstandingway

excellentagingresistancetoelevatedtemperaturesandplasticizersexceptionalopticalclaritynon-yellowinghighestbalanceofadhesionandcohesionexcellentwaterresistanceWhyPSAbasedonacrylics?3KindofPhotoreactiveAcrylicPSASolvent-BasedAcrylicPSAWater-BornePSAbasedonAcrylics(Dispersions)Solvent-FreePSAbasedonAcrylics -acrylichotmelts(130-140°C)(UV-crosslinkable) -LVS(LowViscositySystems)coatedatRM(23°C) (UV-crosslinkableandUV-polymerizable)KindofPhotoreactiveAcrylic4KindofPhotoreactiveAcrylicPSALVSUV-HotmeltUV-DispersionsSolvent-BasedKindofPhotoreactiveAcrylic5UV-CrosslinkingTechnologyUsedbyManufacturingofPhotoreactivePSAphotoreactivepolymersorpolymerswithC=CbondsorotherphotoreactivegroupsintosidepolymerchainsUV-CrosslinkingTechnologyUse6MechanismofUV-initiatedCrosslinkingofPhotoreactiveAcrylicPSAMechanismofUV-initiatedCros74-benzophenylvinylcarbonate

4-acryloyloxy-4’-chlorbenzophenone4-acryloyloxyaminbenzophenonep-vinyl

benzophenone2-propenoicacid2-[4-chlor-(4-benzoylphenoxy)]ethylester4-acryloyloxybenzophenone(H-abstractor)KindofUnsaturatedPhotoinitiators4-benzophenylvinylcarbonate8UVinitiatedcrosslinkingreactionofacrylicPSAsbasedon2-EHAandABPUVinitiatedcrosslinkingreac9Tack,peeladhesionandshearstrengthasafunctionofUVdoseTack,peeladhesionandshear10CZECH-UV光固化在压敏胶和不干胶中的应用课件11CZECH-UV光固化在压敏胶和不干胶中的应用课件12

Commerciallyavailable(BASF,HENKEL,POLY-CHEM)

Photoinitiatorincorporatedduringpolymerizationintothepolymerstructure

Application:-technicaltapes(automobileindustry)-medicaltapes(plaster)

Viscosity:>100Pa·s(atRT)

Coatingtemperature:130to140°C

Coatingusingstandardcoatingequipment:commonslot-dieorroll

systems

UV-crosslinking(UV-lampswithUV-Cspectrum:220…280nm)of

PSAlayer

UV-lampsinstalleddirectlywithinthecoatingequipment

Aftercrosslinkingtransferonthecarrier

Solvent-free,adryingchannelisnotnecessary

AfterUV-crosslinkingnophotochemicalby-productsareobservedUv-crosslinkableacrylichotmeltpsawithphotoinitiatorINCORPORATEDintoTHEpolymerchainCommerciallyavailable(BASF,13UV-CrosslinkableAcrylicPSAHotmelts(UV-HMPSA)acResinA204UVacResinA250UVacResinA260UVacResinDS3532BASFMicryl204Micryl250Micryl260Micryl3532POLY-CHEMUV-CrosslinkableAcrylicPSA14Self-adhesiveproductwithUV-crosslinkedPSAlayerPhotoreactivesolvent-freePSAwithhighviscosityPhotoreactivediluentPSAwithlowviscosityPhotoinitiatorLowviscosityphotoreactivesolvent-freePSAwithlowviscosity+photoreactivecrosslinkingagentsReleaselinerPolyesterfilm

UV-lampProductiontechnologyofself-adhesiveproductsfromLV-PSAsSelf-adhesiveproductPhotoreac15photoreactiveoligomersormonomers(reactivediluents)polyesteracrylatepolyurethaneacrylatephotoreactiveoligomersorm16CZECH-UV光固化在压敏胶和不干胶中的应用课件17CZECH-UV光固化在压敏胶和不干胶中的应用课件18CZECH-UV光固化在压敏胶和不干胶中的应用课件19PerformanceofPressure-SensitiveAdhesives(PSAs)adhesivepropertiesmechanicalpropertiestackpeeladhesion(adhesion)shearstrength(cohesion)shrinkagePerformanceofPressure-Sensit20Mainpropertiesofself-adhesivematerialsTack(initialadhesion)(AFERA4015)Adhesion(peeladhesion)(AFERA4001)Cohesion(shearstrength)(FINATFTM8)ShearAdhesionFailureTemperature(SAFT)TestingWhycohesionisthemostimportant?Mainpropertiesofself-adhesi21TackofinvestigatedsamplesaccordingtoAFERA4015(Loop-Tack)Tackofinvestigatedsamplesa22PeeladhesionmeasurementaccordingtoAFERAtestingby180°and90°Peeladhesionmeasurementacco23cfpcfpcfpcfshshshpshcfpcfpcfpcfshshshpsh24CZECH-UV光固化在压敏胶和不干胶中的应用课件250.30ABP/120g/m²0.35ABP/120g/m²0.35ABP/120g/m²0.40ABP/120g/m²0.30ABP/120g/m²0.35ABP/12026CZECH-UV光固化在压敏胶和不干胶中的应用课件27TACK,ADHESION,COHESIONfunctionof:chemicalstructureofphotoreactivepolymertypeandfunctionalityofphotoreactiveoligomerkindandamountofphotoinitiatorUV-crosslinkingtimeUVdosecoatweightofadhesive(PSA)layerTACK,ADHESION,COHESIONch28UVInductedPolymerizationProcessesUVInductedPolymerizationPro29SOLVENT-FREEPOLYMERIZATION(uncontrolledheatbuild-up)SOLVENT-FREEPOLYMERIZATION30CZECH-UV光固化在压敏胶和不干胶中的应用课件31CZECH-UV光固化在压敏胶和不干胶中的应用课件32CZECH-UV光固化在压敏胶和不干胶中的应用课件33CZECH-UV光固化在压敏胶和不干胶中的应用课件34CZECH-UV光固化在压敏胶和不干胶中的应用课件35ManufacturingofPSAlayerswithdifferentcoatweightManufacturingofPSAlayers36StrengthandweaknessofUV-polymerizationandUV-crosslinkingStrengthandweaknessof37

AdvantagesDisadvantagesPSAperformancepossibledesignofhighmolecularweightdifficultadditionoftackifiers,polymerizationimpairmentbyoxygenProductionsolvent-free,possiblemanufacturingofthick-layerproductspolymerizationimpairmentbyoxygenProcessingusedofmultifunctionalmonomerascrosslinkersproblemswithsmellandvolatilityfrommonomersAdvantagesanddisadvantagesofthesyrup-PSAtechnolog